Chemistry B Final Exam review

A photon is:

• a type of light energy with extremely large mass.

• the smallest type of subatomic particle.

• a particle of light energy with no resting mass.

• a type of torpedo used in Star Trek.

An electron will move from the ground state to the excited state of an atom when:

• It emits a photon of light.

• It absorbs a photon of light.

• It emits an x-ray.

• The nuclear envelope discharges a force field.

An electron emits a photon of light when it:

• becomes a proton orbiting the nucleus.

• pivots between two equal energy states.

• drops from an excited state to a ground state

• jumps from an excited state to a ground state.

The color of light observed being emitted from an atom corresponds to:

• the energy of the light. For example, blue light has lower energy than red light.

• the energy of the light. For example, blue light has higher energy than red light.

• the number of protons in the nucleus.

• the ground state energy of the electron.

The relationship between energy and wavelength of light is:

• inverse; the greater the energy, the shorter the wavelegth.

• direct; the greater the energy the greater the wavelength

• inverse, the greater the energy, the greater the wavelength.

• not enough information is given to answer this question.

Oxidation occurs at the:

• electrons

• anode

• cathode

• salt bridge

Reduction occurs at the:

• electrons

• anode

• cathode

• salt bridge

In the diagram shown, which element is being oxidized?

• The zinc is being oxidized. It is losing electrons.

• The zinc is being oxidized. It is gaining electrons.

• The copper is being oxidized. It is gaining electrons

• The copper is being oxidized. It is losing electrons.

In the digram shown, the porous disk could also be called a type of _______, which serves to balance charges between each half reaction.

• conductive wire

• cathode

• anode

• salt bridge

As the mass of the Zn electrode decreases, where does it go?

• As the zinc is oxidized, zinc ions are used up from the solution.

• As the zinc is reduced, zinc ions are used up from the solution.

• As the zinc is oxidized, zinc ions are created and join the solution.

• As the copper is oxidized, zinc ions are created and join the solution.